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12353989050 = 23352131937049
BaseRepresentation
bin10111000000101101…
…01110100110111010
31011212222012200001000
423200112232212322
5200300110122200
65401512505430
7615100113534
oct134026564672
934788180030
1012353989050
11526a560907
1224893ab276
13121b5b65c0
14852a46854
154c4896300
hex2e05ae9ba

12353989050 has 192 divisors, whose sum is σ = 38591280000. Its totient is φ = 2880852480.

The previous prime is 12353988989. The next prime is 12353989051. The reversal of 12353989050 is 5098935321.

12353989050 is a `hidden beast` number, since 1 + 23 + 539 + 8 + 90 + 5 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 12353988987 and 12353989005.

It is not an unprimeable number, because it can be changed into a prime (12353989051) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 314926 + ... + 351974.

It is an arithmetic number, because the mean of its divisors is an integer number (200996250).

Almost surely, 212353989050 is an apocalyptic number.

12353989050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12353989050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19295640000).

12353989050 is an abundant number, since it is smaller than the sum of its proper divisors (26237290950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12353989050 is a wasteful number, since it uses less digits than its factorization.

12353989050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37102 (or 37091 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The spelling of 12353989050 in words is "twelve billion, three hundred fifty-three million, nine hundred eighty-nine thousand, fifty".